This one probably belongs on the triangular defect thread, but I can't seem to find it with the forum search tool.
But it also has a couple of tack hole "wedgies" on the top and bottom.
Rather than deface this card further apparently a prior owner added the hanger on the back so that it could be displayed without tacks.
No UV protection was provided for Harry for a significant portion of his "hanging" in the midday sun as well.
And you probably didn't notice the missing left lower corner with all of the above.